STOCK TITAN

Gerdau S.A. (NYSE: GGB) CFO sells 10,000 preferred shares at $5.10

(Neutral)
(Negative)
Form Type
4

Rhea-AI Filing Summary

GERDAU S.A. VP, CFO and IR Officer Rafael Japur Dorneles reported selling 10,000 preferred shares on August 6, 2026, at $5.10 per share (price translated from Brazilian reais using a stated Central Bank of Brazil exchange rate), leaving 86,967 preferred shares held directly. He also reports multiple Restricted Stock Unit positions over preferred shares, with exercise prices between $3.65 and $4.15 per share and expirations from 2027 to 2029, covering tens of thousands of underlying shares.

Positive

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Negative

  • None.
Insider Japur Rafael Dorneles
Role Insider
Sold 10,000 shs ($51K)
Type Security Shares Price Value
Sale Preferred shares F1 10,000 $5.10 $51K
holding Restricted Stock Units F2 -- -- --
holding Restricted Stock Units F2 -- -- --
holding Restricted Stock Units F2 -- -- --
holding Restricted Stock Units F2 -- -- --
holding Restricted Stock Units F2 -- -- --
holding Restricted Stock Units F2 -- -- --
Holdings After Transaction: Preferred shares — 86,967 shares (Direct); Restricted Stock Units — 220,475 shares (Direct)
Footnotes (2)
  1. F1. The price is denominated in Brazilian reais and has been translated into U.S. dollars at the August 6, 2026 selling rate of R$5.1017 per US$1.00, as reported by the Central Bank of Brazil.
  2. F2. The price is denominated in Brazilian reais and has been translated into U.S. dollars at the May 22 2026 selling rate of R$5.0140per US$1.00, as reported by the Central Bank of Brazil.
Shares sold 10,000 preferred shares Sale on August 6, 2026 by Rafael Japur Dorneles
Sale price per share $5.10 per share Preferred shares, price translated from Brazilian reais at R$5.1017 per US$1.00
Shares held after transaction 86,967 preferred shares Direct ownership following August 6, 2026 sale
FX rate for sale translation R$5.1017 per US$1.00 Central Bank of Brazil selling rate on August 6, 2026
RSU exercise price 2027-02-22 $3.89 per share Restricted Stock Units over 46,634 underlying preferred shares, expiring February 22, 2027
RSU underlying shares 2029-02-25 81,108 preferred shares Restricted Stock Units with $4.15 exercise price, expiring February 25, 2029
Additional FX rate for RSUs R$5.0140 per US$1.00 Central Bank of Brazil selling rate on May 22, 2026 used for RSU price translation
Restricted Stock Units financial
"He also reports multiple Restricted Stock Unit positions over preferred shares"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
underlying security financial
"underlying_security_title "Preferred shares" and underlying_security_shares figures"
exercise price financial
"conversion_or_exercise_price values such as 3.8900 and 4.1500"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
Central Bank of Brazil financial
"rates as reported by the Central Bank of Brazil for currency translation"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider transaction did GERDAU S.A. (GGB) report for Rafael Japur Dorneles?

Rafael Japur Dorneles reported a sale of 10,000 preferred shares of GERDAU S.A. on August 6, 2026 at $5.10 per share, with the dollar price translated from Brazilian reais using a Central Bank of Brazil exchange rate disclosed in the filing.

At what price were GERDAU S.A. (GGB) shares sold in this Form 4?

The 10,000 preferred shares were sold at $5.10 per share, with the price originally denominated in Brazilian reais and translated into U.S. dollars using an August 6, 2026 rate of R$5.1017 per US$1.00, as reported by the Central Bank of Brazil.

How many GERDAU S.A. (GGB) preferred shares does Rafael Japur Dorneles hold after the sale?

After the reported sale, Rafael Japur Dorneles directly holds 86,967 preferred shares of GERDAU S.A. This figure represents his direct ownership position immediately following the August 6, 2026 transaction reported in the Form 4.

Were the GERDAU S.A. (GGB) insider transactions under a Rule 10b5-1 plan?

The Form 4 indicates the Rule 10b5-1 checkbox as not affirmed (unchecked), and the provided footnotes do not state that the August 6, 2026 sale or the Restricted Stock Unit holdings were made or structured under a pre-arranged Rule 10b5-1 trading plan.

How are foreign exchange rates used in this GERDAU S.A. (GGB) Form 4?

The filing explains that transaction and award prices are denominated in Brazilian reais and translated to U.S. dollars using specific Central Bank of Brazil selling rates, including R$5.1017 per US$1.00 on August 6, 2026 and R$5.0140 per US$1.00 on May 22, 2026.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Japur Rafael Dorneles

(Last)(First)(Middle)
AVENUE DOUTORA RUTH DE CARDOSO, 8501
8TH FLOOR, PINHEIROS

(Street)
SAO PAULOSAO PAULO05425-070

(City)(State)(Zip)

BRAZIL

(Country)
2. Issuer Name and Ticker or Trading Symbol
GERDAU S.A. [ GGB ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
Officer (give title below)XOther (specify below)
VP, CFO and IR Officer
2a. Foreign Trading Symbol
[GGBR]
3. Date of Earliest Transaction (Month/Day/Year)
08/06/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Preferred shares08/06/2026S10,000D$5.1(1)86,967D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units$3.89(2)02/12/202702/12/2027Preferred shares8,9238,923D
Restricted Stock Units$3.89(2)02/22/202702/22/2027Preferred shares46,63446,634D
Restricted Stock Units$3.8(2)08/01/202708/01/2027Preferred shares38,04738,047D
Restricted Stock Units$3.65(2)02/12/202802/12/2028Preferred shares15,83015,830D
Restricted Stock Units$4.15(2)02/12/202902/12/2029Preferred shares29,93329,933D
Restricted Stock Units$4.15(2)02/25/202902/25/2029Preferred shares81,10881,108D
Explanation of Responses:
1. The price is denominated in Brazilian reais and has been translated into U.S. dollars at the August 6, 2026 selling rate of R$5.1017 per US$1.00, as reported by the Central Bank of Brazil.
2. The price is denominated in Brazilian reais and has been translated into U.S. dollars at the May 22 2026 selling rate of R$5.0140per US$1.00, as reported by the Central Bank of Brazil.
/s/ Rafael Dorneles Japur08/10/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)